Connected load versus peak demand: what is likely to run together?
Separate every appliance connected to a site from the equipment likely to operate at the same time.
Connected load adds the nameplate power of every listed appliance. Peak demand applies a realistic concurrency assumption to the equipment that can run together. A home can have 10 kW connected without needing 10 kW continuously.
Start with a credible operating moment
List loads that might coincide: cooling, pumps, cooking, lighting and essential equipment. Do not reduce a load merely because it is inconvenient for the result. Starting motors and compressors can draw more than their normal running power.
Use the result as a screen
The electrical load calculator shows connected load, an entered concurrency share and a nominal current screen. It does not size conductors, breakers, earthing or a generator. Those decisions need equipment data and local electrical design.
After peak power, estimate operating hours separately. Peak demand does not show monthly kWh or battery duration.
Put the idea into numbers.
Open the electrical load calculator →